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In 1970, Marcian Hoff, and engineer, invented the microprocessor, an entire CPU on a single chip. The replacement of several larger components by one microprocessor made possible the fourth generation of computers.
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They had … Input Devices Memory CPU (Central Processing Unit) Output Devices
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Computers have two types of memory contained on chips..ROM and RAM!!
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ROM- Read only memory, enables the computer to complete simple jobs such as placing a character on the screen or checking he keyboard to see if any keys have been pressed.
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RAM- Random Access Memory, is a temporary memory where data and instructions can be stored.
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The first computer was invented in 1936 by a man named Konrad Zuse. The computer was called a Z1 Computer.
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It came from Grace Murray Hopper’s report of finding an actual bug-a moth-inside a computer.!
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The internet began in 1969. The internet started as something called ARPA Net, and it was created by the US military as a world wide communications network.
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The Babbage Analytical Engine is a massive brass, steam-powered, general purpose mechanical computer.
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Hollerith’s method was used in 1890 census. He invented it because like if you had a railway ticket, he wanted to have the age, state of residence, gender, and other other information on the card.
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The army needed a computer for calculating artillery-firing tables, the setting used for different weapons under varied conditions for target accuracy. It was built in the University of Pennsylvania.
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A program is an organized list of instructions that, when executed, causes the computer to behave in a predetermined manner. Without programs, computers are useless.
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By replacing bulky and unreliable vacuum tubes with transistors, computers could now perform the same functions, using less power and space.!
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In 1975, Ed Roberts invented the Microcomputer. A microcomputer is a computer with a microprocessor as its central processing unit.
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A binary system is a representation system, used in computers, with only two digits, 0 and 1.
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